Based on the visual search process of information features and the browsing paths of fixation-saccade, the attention resource allocation of operator searching for information was analyzed and the movement-based eye tracking experiment was conducted. According to the experimental result, the search paths were influenced by the task-driven approach, and the reaction time shown a significant difference with eye movement data in different tasks. A significant difference was also shown for the information distribution attention capture in different monitoring areas. The fixation/saccade ratio indicates the limited information search of monitoring task layout in experimental materials. In addition, the clustering relationship shows the information direction and features that can be easily captured. Thus, the relationship between information processing and the task, the relationship between the information search and the monitoring area and the clustering relationship of information features. The conclusion can effectively guide the improved design of monitoring task interface and enhance the cognitive performances of task implementations by operators.